Image-based Distributed Optical Fiber Perimeter Vibration Signal Processing and Recognition Method

A distributed optical fiber and vibration signal technology, applied in image data processing, image analysis, character and pattern recognition, etc., can solve problems such as interference recognition effect, achieve suppression of system noise interference, reduce false alarm rate, and improve intelligent recognition ability Effect

Active Publication Date: 2017-12-05
WUHAN WUTOS
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  • Claims
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Problems solved by technology

Features based on single-point signal extraction are easily affected by the above factors, which interfere with the recognition effect.

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  • Image-based Distributed Optical Fiber Perimeter Vibration Signal Processing and Recognition Method
  • Image-based Distributed Optical Fiber Perimeter Vibration Signal Processing and Recognition Method
  • Image-based Distributed Optical Fiber Perimeter Vibration Signal Processing and Recognition Method

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[0035] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] The image-based distributed optical fiber perimeter vibration signal processing and identification method of the present invention, such as figure 1 shown, including the following steps:

[0037] S11. Real-time collection of disturbance data of all detection points within the entire distributed perimeter detection range;

[0038] S12. When the disturbance data at a certain detection point is greater than the set threshold, collect the disturbance data at the detection point and its surrounding M×N area at the moment, and map its value to 0-255;

[0039] S13. Calculate the gray level co-...

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Abstract

The invention discloses an image-based distributed optical fiber perimeter vibration signal processing and identification method, comprising the following steps: collecting the disturbance data of all detection points within the entire distributed perimeter detection range in real time; When the disturbance data is greater than the set threshold, collect the disturbance data in the range of the detection point and its surrounding M×N area at this moment, and map its value to between 0 and 255; calculate the gray level co-occurrence matrix according to the mapping value, and calculate the gray level Statistical parameters of texture features in multiple directions in the degree co-occurrence matrix; compare the statistical parameters of texture features in multiple directions, if they are similar, it is considered that irregular system noise occurs in this area; if the deviation exceeds the set value, it is considered that this Intrusion disturbance occurs when the intrusion disturbance occurs; pattern recognition is performed on the intrusion disturbance signal to determine the type of intrusion behavior.

Description

technical field [0001] The invention relates to the technical field of optical fiber perimeter security, in particular to an image-based distributed optical fiber perimeter vibration signal processing and identification method. Background technique [0002] Distributed optical fiber sensing technology continuously and real-time measures the environmental physical parameters distributed along the optical fiber geometric path, which is very suitable for a large spatial range. The optical fiber is used as both a sensing element and a transmission element. Its advantages are high sensitivity, low cost, continuous real-time, long monitoring distance, high concealment, and anti-electromagnetic and other environmental factors. In order to further meet the requirements of security performance, it is necessary to discriminate the behavior information that triggers the monitoring area of ​​the system, and at the same time shield the impact of wind and rain environment and system noise...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62G06T7/41
Inventor 杨玥闫奇众刘军荣熊岩王丹印新达
Owner WUHAN WUTOS
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